using System;

using System.Collections.Generic;

using System.Linq;

class testclass

{

    public string name{get;set;}

    public string job{get;set;}

}

​

public class Program

{

    public static void Main()

    {

        testclass data = new testclass();

data.name = "John";

data.job = "Technician";

IList<testclass> someList = new List<testclass>();

testclass tc = null;

tc = new testclass();

tc.name = "John";

tc.job = "Technician";

someList.Add(tc);

tc = new testclass();

tc.name = "Rachel";

tc.job = "System Adminstrator";

someList.Add(tc);

tc = new testclass();

tc.name = "Frank";

tc.job = "IT Support";

someList.Add(tc);

Console.Write(someList.Count);

var fullList = (from item in someList

                    where item.name == data.name 

                    & item.job == data.job

                    select item).ToList();

Console.Write(","+fullList.Count);

    }

}